CN206944226U - A kind of wear-resistant biomass boiler water-cooling wall - Google Patents
A kind of wear-resistant biomass boiler water-cooling wall Download PDFInfo
- Publication number
- CN206944226U CN206944226U CN201720878920.2U CN201720878920U CN206944226U CN 206944226 U CN206944226 U CN 206944226U CN 201720878920 U CN201720878920 U CN 201720878920U CN 206944226 U CN206944226 U CN 206944226U
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- wear
- screen tube
- water screen
- wall
- water
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Abstract
The utility model discloses a kind of wear-resistant biomass boiler water-cooling wall, belong to boiler of power plant auxiliary device field.Wear-resistant biomass boiler water-cooling wall of the present utility model, including water screen tube, some water screen tubes are arranged on the periphery of inner wall of burner hearth, and the outer wall of water screen tube is provided with helically linear wear rib.Wear-resistant block is also uniformly provided with the outer wall of water screen tube.Wear-resistant block is shaped as semielliptical shape, and the wear-resistant block of the semielliptical shape and straight line where the major axis of the contact surface of water screen tube outer wall are vertical with the axis of water screen tube.Height of the wear rib on water screen tube outer wall is more than wear-resistant block.The purpose of this utility model is to overcome the shortcomings of that the water screen tube wear problem of existing biomass boiler is more serious, there is provided a kind of wear-resistant biomass boiler water-cooling wall, solves above mentioned problem to a certain degree.
Description
Technical field
Boiler of power plant auxiliary device field is the utility model is related to, more specifically to a kind of wear-resistant biomass pot
Stove water-cooling wall.
Background technology
The water cooling tube wall being made up of metallic conduit is equipped with the inside of boiler furnace, water cooling tube wall presses close to heating wall inwall,
Arrangement parallel to each other, upper end are connected with drum or upper header, and lower end is connected with lower collecting box.The effect of water-cooling wall is absorbed in burner hearth
The radiations heat energy of thermal-flame or flue gas, steam or hot water are produced in pipe, and reduce temperature of furnace wall, protect furnace wall.Boiler Furnace
Temperature is high in thorax, material particles are thick and wind speed is fast, and water cooling tube wall easily wears, and due in the burner hearth of biomass boiler dust stratification ask
Topic is serious, therefore water cooling tube wall wear problem shows particularly evident in biomass boiler, and tube wall is washed abrasion and spill occurs
Groove is cheated, and is easily triggered pipe explosion accident, is influenceed boiler long period safe operation, potential safety hazard be present.
Mainly slow down the wear problem of water cooling tube wall by the way of water screen tube wall thickness is increased in the prior art, lead to
The wall thickness of increase water screen tube is crossed, can also extend the service life of water screen tube to a certain extent, play control water-cooling wall
The effect of the rate of wear, but after abrasionproof processing is carried out by the way of increasing the design wall thickness of water screen tube, boiler can be increased
Manufacturing cost, and the use of which is to extend the wearing- in period of wall-cooling surface, can not play preferably improves abrasion
Effect.
Other boiler water-wall tube abrasion-proof structures, such as patent publication No. are also disclosed in the prior art：CN
205065705 U, publication date：On 03 02nd, 2016, invention and created name was：A kind of boiler water-wall tube abrasion-proof structure, should
Application case discloses a kind of boiler water-wall tube abrasion-proof structure, and it includes body of heater, and lower portion of furnace body is combustion chamber, both sides in combustion chamber
Multiple water screen tubes are placed with, it is semicircular Antiwear casing to be set with section close to combustion chamber center side on water screen tube,
Water screen tube both sides uniformly form multiple ribs along direction of axis line, and Antiwear casing both sides and rib position corresponding section are inside
Form buckle structure, water screen tube and Antiwear casing and pass through buckle structure and rib clamping.This application case passes through buckle structure
The Antiwear casing being sleeved on rib on water screen tube, water screen tube abrasion, booster can be prevented, ensures safe operation of the boiler, is prevented
Grinding set length of tube can select as needed, and replaceable after abrasion, convenient disassembly.But this application case is disadvantageous in that：
For large-sized boiler, the enormous amount of water screen tube, therefore the installation cost of Antiwear casing and manufacturing cost greatly increase, unfavorable
In promoting the use of, and it is set with the heat conduction efficiency that a large amount of Antiwear casings will have a strong impact on water screen tube.
In summary, the problem of how overcoming the water screen tube wear problem of existing biomass boiler more serious, is existing
The technical problem of urgent need to resolve in technology.
Utility model content
1. utility model technical problems to be solved
The purpose of this utility model is to overcome the shortcomings of that the water screen tube wear problem of existing biomass boiler is more serious,
A kind of wear-resistant biomass boiler water-cooling wall is provided, solves above mentioned problem to a certain degree.
2. technical scheme
To reach above-mentioned purpose, technical scheme provided by the utility model is：
Wear-resistant biomass boiler water-cooling wall of the present utility model, including water screen tube, some water screen tubes are arranged on stove
The periphery of inner wall of thorax,
The outer wall of the water screen tube is provided with helically linear wear rib.
Further improved as the utility model, wear-resistant block is also uniformly provided with the outer wall of the water screen tube.
Further improved as the utility model, the wear-resistant block is shaped as semielliptical shape, the semielliptical shape
Wear-resistant block and straight line where the major axis of the contact surface of the water screen tube outer wall are vertical with the axis of the water screen tube.
Further improved as the utility model, height of the wear rib on water screen tube outer wall is more than described
Wear-resistant block.
Further improved as the utility model, the inwall of the water screen tube is provided with along water screen tube length side
To the arc convex bar of extension, circumferential equidistantly distributed of some arc convex bars along water screen tube inwall.
Further improved as the utility model, one layer of non-sticking lining is coated on the outer wall of the water screen tube.
Further improved as the utility model, the non-sticking lining is made of polytetrafluoroethylmaterial material.
Further improved as the utility model, the wear rib formed on water screen tube outer wall lift angle for 30~
55 ° of helix.
3. beneficial effect
Using technical scheme provided by the utility model, compared with prior art, have the advantages that：
(1) in the utility model, the outer wall of water screen tube is provided with helically linear wear rib, the outer wall of water screen tube
On be also uniformly provided with wear-resistant block, helically linear wear rib is set on the outer wall of water screen tube and is uniformly arranged wear-resistant block
The wearability of water screen tube outer wall can be significantly improved, and wherein height of the wear rib on water screen tube outer wall is more than wear-resisting
Block, the helically linear and higher wear rib of height is mainly used in obstructing, destroy in water screen tube outside wall surface formed it is " adherent
Stream ", be uniformly distributed and highly relatively low wear-resistant block be mainly used in strengthen water screen tube outside wall surface wearability, the utility model
In, the helically linear and higher wear rib of height and it is uniformly distributed and highly relatively low wear-resistant block acts synergistically, slows down jointly
The phenomenon that water screen tube outer wall is worn.It should be noted that wear rib is formed on water screen tube outer wall in the utility model
Helix, the lift angle of the helix are not easy excessive or too small, otherwise can not effectively play barrier, destroy the effect of " sticking wall flow ",
The lift angle of the helix is arranged to 30-55 ° in specific the utility model.
(2) in the utility model, wear-resistant block is shaped as semielliptical shape, outside the wear-resistant block and water screen tube of the semielliptical shape
Straight line where the major axis of the contact surface of wall is vertical with the axis of water screen tube, because the outside wall surface of water screen tube is mainly by horizontal stroke
To sweep of gases, while the wear-resistant block of some semielliptical shapes is in laterally uniform in the outside wall surface of water screen tube, so that
Form circulation passage between upper and lower two neighboring wear-resistant block, and the circulation passage is that import is tapered, horizontal stream of outlet flaring
Circulation passage, be quite suitable for horizontal flue gas on the other hand by being on the one hand not easy to accumulate dust here, horizontal flue gas
Smooth flow through is not easy to wash away to being here formed as larger abrasion, therefore, is uniformly distributed and the wear-resistant block of semielliptical shape can subtract
The phenomenon that slow water screen tube outer wall is worn.
(3) in the utility model, one layer of non-sticking lining is coated on the outer wall of water screen tube, the non-sticking lining uses polytetrafluoro
Vinyl material is made, and the setting of non-sticking lining causes flue gas, dust to be not easy to bond on water screen tube outer wall, improves water cooling
The surface environment of wall pipe outer wall, make it be not easy to be bonded corrosion, the phenomenon that water screen tube outer wall is worn can be slowed down.
(4) in the utility model, the inwall of water screen tube is provided with the arc convex extended along water screen tube length direction
Bar, circumferential equidistantly distributed of some arc convex bars along water screen tube inwall, the side of setting one of some arc convex bars
Face adds the surface area of water screen tube inwall, so as to improve the heat exchange of flow media and water screen tube inwall in water screen tube
Coefficient, the turbulence intensity of flow media in water screen tube is on the other hand added, improve the overall heat transfer effect of water screen tube.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 is the arrangement schematic diagram of water screen tube in burner hearth in embodiment 1；
Fig. 2 is the main structure diagram of water screen tube in embodiment 1；
Fig. 3 is the cross section structure diagram of water screen tube in embodiment 1.
Label declaration in schematic diagram：1st, burner hearth；6th, water screen tube；601st, wear-resistant block；602nd, wear rib；603rd, arc is convex
Play bar.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Therefore, below to providing in the accompanying drawings
The detailed description of embodiment of the present utility model be not intended to limit claimed the scope of the utility model, but only
Represent selected embodiment of the present utility model.Based on the embodiment in the utility model, those of ordinary skill in the art are not having
The every other embodiment obtained under the premise of creative work is made, belongs to the scope of the utility model protection.
To further appreciate that content of the present utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
With reference to Fig. 1, Fig. 2 and Fig. 3, the wear-resistant biomass boiler water-cooling wall of the present embodiment, including water screen tube 6, it is some
Water screen tube 6 is arranged on the periphery of inner wall of burner hearth 1, and the outer wall of water screen tube 6 is provided with helically linear wear rib 602；Water
Wear-resistant block 601 is also uniformly provided with the outer wall of cold wall pipe 6；Wear-resistant block 601 is shaped as semielliptical shape, the semielliptical shape it is wear-resisting
Block 601 and straight line where the major axis of the contact surface of the outer wall of water screen tube 6 are vertical with the axis of water screen tube 6.Wear rib 602 exists
Height on the outer wall of water screen tube 6 is more than wear-resistant block 601.One layer of non-sticking lining is coated on the outer wall of water screen tube 6, the not snearing
Layer is made of polytetrafluoroethylmaterial material.Wear rib 602 forms the helix that lift angle is 30~55 ° on the outer wall of water screen tube 6.
The inwall of water screen tube 6 is provided with the arc convex bar 603 extended along the length direction of water screen tube 6, some arcs
Circumferential equidistantly distributed of the raised item 603 along the inwall of water screen tube 6.
In the present embodiment, the outer wall of water screen tube 6 is provided with helically linear wear rib 602, the outer wall of water screen tube 6
On be also uniformly provided with wear-resistant block 601, helically linear wear rib 602 is set on the outer wall of water screen tube 6 and uniformly set
The wearability of the outer wall of water screen tube 6 can be significantly improved by putting wear-resistant block 601, and wherein wear rib 602 is on the outer wall of water screen tube 6
Height be more than wear-resistant block 601, wear rib 602 helically linear and that height is higher is mainly used in obstructing, destroyed in water-cooling wall
" sticking wall flow " formed in the outside wall surface of pipe 6, is uniformly distributed and highly relatively low wear-resistant block 601 is mainly used in strengthening water screen tube 6
The wearability of outside wall surface, in the present embodiment, helically linear and wear rib 602 that height is higher and it is uniformly distributed and highly relatively low
Wear-resistant block 601 act synergistically, slow down the phenomenon that the outer wall of water screen tube 6 is worn jointly.It should be noted that in the present embodiment
Wear rib 602 forms helix on the outer wall of water screen tube 6, and the lift angle of the helix is not easy excessive or too small, otherwise can not have
Effect plays a part of barrier, destroys " sticking wall flow ", and the lift angle of the helix is arranged to 30 ° in specific the present embodiment.
In the present embodiment, wear-resistant block 601 is shaped as semielliptical shape, wear-resistant block 601 and the water screen tube 6 of the semielliptical shape
Straight line where the major axis of the contact surface of outer wall is vertical with the axis of water screen tube 6, due to water screen tube 6 outside wall surface mainly by
To horizontal sweep of gases, while the wear-resistant block 601 of some semielliptical shapes is in laterally homogeneous point in the outside wall surface of water screen tube 6
Cloth, so that circulation passage is formed between upper and lower two neighboring wear-resistant block 601, and the circulation passage is that import is tapered, exported
The horizontal circulation passage of flaring, be quite suitable for horizontal flue gas by being on the one hand not easy to accumulate dust, the opposing party here
Smooth flow through of face transverse direction flue gas be not easy to wash away to being here formed as larger abrasion, therefore, is uniformly distributed and semielliptical shape
Wear-resistant block 601 can slow down the phenomenon that the outer wall of water screen tube 6 is worn.
In the present embodiment, one layer of non-sticking lining is coated on the outer wall of water screen tube 6, the non-sticking lining uses polytetrafluoroethylene (PTFE)
Material is made, and the setting of non-sticking lining causes flue gas, dust to be not easy to bond on the outer wall of water screen tube 6, improves water-cooling wall
The surface environment of the outer wall of pipe 6, make it be not easy to be bonded corrosion, the phenomenon that the outer wall of water screen tube 6 is worn can be slowed down.
In the present embodiment, the inwall of water screen tube 6 is provided with the arc convex bar extended along the length direction of water screen tube 6
603, circumferential equidistantly distributed of some arc convex bars 603 along the inwall of water screen tube 6, some arc convex bars 603
On the one hand the surface area for adding the inwall of water screen tube 6 is set, so as to improve flow media and water screen tube in water screen tube 6
The coefficient of heat transfer of 6 inwalls, the turbulence intensity of flow media in water screen tube 6 is on the other hand added, it is whole to improve water screen tube 6
The heat transfer effect of body.
Embodiment 2
The wear-resistant biomass boiler water-cooling wall of the present embodiment, its structure is substantially the same manner as Example 1, and its difference exists
In：Wear rib 602 forms the helix that lift angle is 55 ° on the outer wall of water screen tube 6 in the present embodiment.
Schematically the utility model and embodiments thereof are described above, this describes no restricted, accompanying drawing
Shown in be also one of embodiment of the present utility model, actual structure is not limited thereto.So if this area
Those of ordinary skill enlightened by it, do not depart from the utility model create objective in the case of, without creativeness design
The frame mode similar to the technical scheme and embodiment, the scope of protection of the utility model all should be belonged to.
Claims (8)
1. a kind of wear-resistant biomass boiler water-cooling wall, including water screen tube (6), some water screen tubes (6) are arranged on burner hearth (1)
Periphery of inner wall, it is characterised in that：
The outer wall of the water screen tube (6) is provided with helically linear wear rib (602).
2. wear-resistant biomass boiler water-cooling wall according to claim 1, it is characterised in that：The water screen tube (6)
Wear-resistant block (601) is also uniformly provided with outer wall.
3. wear-resistant biomass boiler water-cooling wall according to claim 2, it is characterised in that：The wear-resistant block (601)
Semielliptical shape is shaped as, the major axis place of the wear-resistant block (601) of the semielliptical shape and the contact surface of the water screen tube (6) outer wall
Straight line is vertical with the axis of the water screen tube (6).
4. wear-resistant biomass boiler water-cooling wall according to claim 3, it is characterised in that：The wear rib (602) exists
Height on water screen tube (6) outer wall is more than the wear-resistant block (601).
5. wear-resistant biomass boiler water-cooling wall according to claim 4, it is characterised in that：The water screen tube (6)
Inwall be provided with along water screen tube (6) length direction extend arc convex bar (603), some arc convex bars (603) along
The circumferential equidistantly distributed of water screen tube (6) inwall.
6. wear-resistant biomass boiler water-cooling wall according to claim 5, it is characterised in that：The water screen tube (6)
One layer of non-sticking lining is coated on outer wall.
7. wear-resistant biomass boiler water-cooling wall according to claim 6, it is characterised in that：The non-sticking lining is using poly-
Tetrafluoroethene material is made.
8. wear-resistant biomass boiler water-cooling wall according to claim 7, it is characterised in that：The wear rib (602) exists
The helix that lift angle is 30~55 ° is formed on water screen tube (6) outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720878920.2U CN206944226U (en) | 2017-07-19 | 2017-07-19 | A kind of wear-resistant biomass boiler water-cooling wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720878920.2U CN206944226U (en) | 2017-07-19 | 2017-07-19 | A kind of wear-resistant biomass boiler water-cooling wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206944226U true CN206944226U (en) | 2018-01-30 |
Family
ID=61370055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720878920.2U Expired - Fee Related CN206944226U (en) | 2017-07-19 | 2017-07-19 | A kind of wear-resistant biomass boiler water-cooling wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206944226U (en) |
-
2017
- 2017-07-19 CN CN201720878920.2U patent/CN206944226U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180130 Termination date: 20180719 |
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| CF01 | Termination of patent right due to non-payment of annual fee |